Neos\Fusion\Core\Parser::parseComment PHP Method

    protected function parseComment($typoScriptLine)
    {
        if (preg_match(self::SPLIT_PATTERN_COMMENTTYPE, $typoScriptLine, $matches, PREG_OFFSET_CAPTURE) === 1) {
            switch ($matches[1][0]) {
                case '/*':
                    $this->currentBlockCommentState = true;
                    break;
                case '*/':
                    if ($this->currentBlockCommentState !== true) {
                        throw new Fusion\Exception('Unexpected closing block comment without matching opening block comment.', 1180615119);
                    }
                    $this->currentBlockCommentState = false;
                    $this->parseTypoScriptLine(substr($typoScriptLine, $matches[1][1] + 2));
                    break;
                case '#':
                case '//':
                default:
                    break;
            }
        } elseif ($this->currentBlockCommentState === false) {
            throw new Fusion\Exception('No comment type matched although the comment scan regex matched the TypoScript line (' . $typoScriptLine . ').', 1180614895);
        }
    }